Ships free with Plus
  • High-viscosity formula and long-lasting bubbles for better leak detection
  • Safe for metals, all refrigerants, natural gas, and oxygen
  • Usable on fluorescent dye systems - will not affect ultraviolet or blacklight detection
  • Usable at 5 - 225 degrees Fahrenheit
  • Ready to use spray bottle
UPC Code: 00681001418201
Shipping: Usually Ships in 1-2 Business Days
Nu-Calgon Cal-Blue Gas Leak Detectors

Nu-Calgon Cal-Blue Gas Leak Detectors

Air conditioning, heating, and refrigeration systems are pressurized. And as these systems age, leaks can occur in coils, piping, and joints. Since refrigerant leaks are expensive, harmful to the environment, and can impose health and safety risks, it's important to use a gas leak detector that can find even the smallest leaks in a system. In the 1950s, Nu-Calgon developed one of the industry's first gas leak detectors. As technology has advanced, Nu-Calgon has continued to develop products to detect even hard-to-find leaks. Now, Nu-Calgon has developed Cal-Blue Plus, in an innovative, pressurized spray package. Cal-Blue Plus from Nu-Calgon is a highly effective gas leak detector, formulated to be thicker than other products in the industry. This allows Cal-Blue to cling longer to any horizontal or vertical surface, and the longer the solution remains on the potential leak area, the better chance of locating small, difficult to find leaks. Not only does Cal-Blue Plus cling longer to coils and pipes, but its high viscosity formula provides the longest-lasting bubbles on the market. This is especially useful when testing for small leaks in multiple locations. Cal-Blue is non-corrosive to metals and maintains the integrity of the system's piping, tubing, and fittings. It can be used on systems with fluorescent dyes and won't affect the use of ultraviolet lights. Cal-Blue Plus works with all refrigerants and other gases, such as natural gas, nitrogen, oxygen, and compressed air. It can be used at temperatures up to 225 degrees Fahrenheit and is freeze protected down to 5 degrees Fahrenheit, making it suitable for testing air conditioning and medium temperature refrigeration systems. Cal-Blue Plus' unique pressurized spray uses air and not gas as a propellant, but is just as convenient as an aerosol. Cal-Blue pressurized sprays at any angle and reduces finger fatiguie with its easy to press actuate. Nu-Calgon, the industry leader, has taken gas leak detection to the next level with Cal-Blue Plus.

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Check out the video to discover the various applications of the Cal-Blue Plus pressurized spray package!

Nu-Calgon 418224 Specs
Chemical Form Spray
Made in America Yes
Package Size 1 qt.
Ready-to-Use Yes
Type Leak Detectors

Customer questions about this product

Can I apply this product myself?
We recommend that this product be applied by a trained HVAC/R professional to ensure that it performs as expected and that you get the desired results.
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Nu-Calgon 418224 Details

This Nu-Calgon 4182-24 Cal-Blue Plus micro leak detector is a must-have for technicians servicing refrigeration equipment! This product is designed with a high-viscosity formula that makes detecting refrigerant, natural gas, and oxygen leaks as quick and easy as possible. Even small leaks are easy to find because Cal-Blue Plus is engineered to stay on the surface longer, and the bubbles produced when a leak is present will stay around longer than comparable products. It is safe for use on metal, and it will not interfere with ultraviolet and blacklight detection methods. It is freeze-safe to 5 degrees Fahrenheit, and can be used at temperatures up to 225 degrees Fahrenheit, too. The 1 qt. spray bottle makes it easy to apply the product with no dilution or preparation required.

Application is a simple process. Just apply the product liberally around a joint in the gas or refrigerant line. If a leak is present, bubbles will form within a few seconds, making detection easy!

Because this item is not stocked in our warehouse, processing, transit times and stock availability will vary. If you need your items by a certain date, please contact us prior to placing your order. Expedited shipping availability may vary. We cannot guarantee that this item can be cancelled off of the order or returned once it is placed.

Attention CA Residents: Prop 65 Warning

  • Made in America

    Made in America

    This item was made in the United States of America.

Resources and Downloads for
Nu-Calgon 418224

Spec Sheet Specsheet SDS SDS Leak Detector Brochure Brochure

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